House Energy Rating

The energy is the main criterion considered by any international building energy rating scheme but there are some other important factors such as production of greenhouse gases emission, indoor environment quality, cost efficiency and thermal comfort, which are considered by some schemes.

Basically all these tools involve a numerical description or prepare a computer-based model for the rating of a building against standard occupancy and activity templates.

[2] HERS uses computer-simulation based methods for assessing the energy efficiency of buildings under standard conditions and its potential for improvement.

Basically HERS generates three types of outputs[3] As per national energy policies, HERS are known by different names in different countries.

Beside all this, the aim of all HERS is almost same and it can be classified into three types: Increase in population, economic issues are the some factors which have escalated the energy demand across the world.

Beside this high growth in energy consumption it also causes to increase the production of green house gases to the atmosphere.

Some of HERS used in this country are: In Brazil, the first national program for energy efficiency in buildings (HERS), PROCEL EDIFICA was developed in 2003.

This rating scheme is an adaption of the US green building council's LEED and has been modified as per the Canadian climate, construction and regulation policies.

Denmark is the first country in Europe (EU) to begin issuing Energy Performance certificates (EPCs).

In both cases of measurements, the buildings are evaluated in terms of necessary resource for heating, hot water production and air conditioning.

This rating scheme covers mainly the indoor air quality and energy performance of the buildings.

The compliance in the country is high and the EPC is issued only when 90% of building completion and transaction observed.

The United Kingdom (UK) is one of the countries where HERS has been developed and implemented strongly from a very long time ago.

NHER scheme measure the thermal efficiency of the dwellings on a scale of 0-10 in terms of energy running cost.

The energy usage is calculated by considering the all aspects of buildings (location, design, construction, water heating, cooking, ventilation and appliances, lighting etc.)

This rating scheme consist a detailed measure of CFLs, water heater tanks, ceiling, floors and pipe insulation, efficient refrigerator and freezer, high efficient space and water heating equipments, air leakage and controls.